Duff Mark

CIK: 0001678382

Duff Mark is a corporate insider at PERMA FIX ENVIRONMENTAL SERVICES INC (PESI) filing SEC Form 4 transactions. 61 transactions, totaling $176,910 in purchases and $0 in sales. Source: SEC EDGAR.

Total Transactions
61
Total Buy Value
$177K
Total Sell Value
$0
Net Activity
+$177K
Last Transaction
Sep 2025
Companies
1

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Purchase
Shares
897
Price
$8.05
Value
$7K
Type
Purchase
Shares
650
Price
$7.05
Value
$5K
Type
Purchase
Shares
650
Price
$7.03
Value
$5K
Type
Purchase
Shares
750
Price
$7.02
Value
$5K
Type
Purchase
Shares
500
Price
$7.20
Value
$4K
Type
Purchase
Shares
500
Price
$7.10
Value
$4K
Type
Exercise
Shares
25,000
Price
$3.15
Value
$79K
Type
Tax Payment
Shares
7,443
Price
$10.58
Value
$79K
Type
Exercise
Shares
25,000
Price
$3.15
Value
$79K
Type
Purchase
Shares
350
Price
$9.95
Value
$3K
Type
Purchase
Shares
500
Price
$9.91
Value
$5K
Type
Purchase
Shares
750
Price
$10.07
Value
$8K
Type
Purchase
Shares
500
Price
$10.48
Value
$5K
Type
Purchase
Shares
750
Price
$7.00
Value
$5K
Type
Purchase
Shares
750
Price
$7.28
Value
$5K
Type
Purchase
Shares
750
Price
$7.27
Value
$5K
Type
Purchase
Shares
750
Price
$7.07
Value
$5K
Type
Exercise
Shares
100,000
Price
$0.00
Value
$0
Type
Tax Payment
Shares
33,032
Price
$11.05
Value
$365K
Type
Exercise
Shares
100,000
Price
$3.65
Value
$365K